Container cap



FIG. 1 is a front elevation of a container cap showing our new design;

FIG. 2 is a top plan view thereof; and

FIG. 3 is a bottom plan view thereof.

The rear, right side, and left side elevational views are not shown and are essentially identical to the front elevational view shown in FIG. 1. 

The ornamental design for a container cap, as shown and described. 